Combined generator and pump



H. R. VAN DEVENTER. v COMBINED GENERATOR AND PUMP.

APPLICATION man MAY25 191a- 1,349,397, I Pat6ntedAug. 10,1920. Y

0Q i Y k UNITED STATES PATENT OFFIQE.

HARRY RANDOLPH VAN DEVEN'IER, or SUMTER, SOUTH CAROLINA, ASSIGN-OR T0 srnrrnonr ELECTRICAL COMPANY, or NEWARK, NEW JERSEY, -A CORPORA.

COMBINED GENERATOR AND PUMP.

Specification of Letters Patent. Patent d A 10 Application filed May 25, 1916. Serial No. 99,855.

To all tuhom it may concern Be 1t known that I, HARRY RANDOLPH VAN DEVENTER, .a citizen of the United States,

residing at Sumter, in the county of Sumter 'lI1 had to the accompanying drawing.

y invention relates to a combined dynamo and pump for supplying ignition current and pumping lubricant to an engine.

Dynamos commonly known as magnetos are used on motors for vehicles, and on stationary and marine engines. Such motors often require a pump for circulating the cooling water or the lubricant, and it has heretofore been customary to furnish the magneto as one unit and the pump as another, each one of these accessories having its separate base, driving shaft, and other parts. I

The object of my invention is to combine the magneto and pump in a single unit structure, ready to mount on the engine. A further object is to provide a magneto that may be used as an oil pump and not require any lubrication, other than that furnished by the oil circulated.

Another object is to provide a magneto in which the revolving element will act as the impeller of the pump, said revolving element being entirely inclosed by the field structure and other parts of the magneto. A further object is to provide an improved system of ignition and lubrication for engines.

There are "other objects as hereinafter pointed out and included within the scope of the appended claims.

In the accompanying drawing in which like figures of reference denote the same parts wherever they are shown,

Figure 1 is a side view of a rotor used in My lmproved dynamo and pump consists of a supporting base 1 which has upwardly extending portlons 2-2. Securedto these upwardly extending portions are pole pieces 14 and 15. Said pole pieces and the up-' wardly extending parts of the base are provlded wltn a cylindrical recess within which fits and rotates a rotor 6. Said rotor 6 is mounted on a shaft 9 which is mounted in suitable bearings. At opposite ends of the rotor there are end plates 3 and 4 respectlvely. A cover plate 5 closes an opening in the upwardly projecting parts 2 of the base structure. The pole pieces extend upwardly and mounted between the upper endsthereof 1s a generating coil 13. Mounted on the base 1 are magnets M. These magnets embrace the end plates 3' and 4 and furnish flux to the rotor, the rotor operating in the well known way to reverse the flux through the generating coil 13. Said rotor as is well understood in this art, is provided with pole shoes which are spaced from each other and non-magnetic material fills the space between the shoes, forming with the pole shoes a cylindrical body portion. The body portion of the rotor is provided with chambers 7 and 8 the walls of which are curved, as

clearly indicated in Fig. 2. These chambers extend only partway throughout the length of the rotor, as indicated in dotted lines in Fig. 3. The pole piece 14 is cut away to form a chamber 11 which opens into the cylindrical chamber in which the rotor opcrates. A pipe 11 extends through the projecti-ng portion 2 of the base and is adapted to discharge into the chamber 11*. A chamber 10 is formed in the pole shoe on the opposite side of the rotor and this chamber opens into the chamber in which the rotor operates. A pipe 10 is connected to the chamber 10 and is adapted to receive the oil discharged by the rotor into the chamthe combined dynamo and pump embodying one form of my invention;

Fig. 2 is a sectional view of my combined dynamo and pump on the line, BB of Fig. 3 of the drawing, the generating coil not being sectioned;

Fi 3 is a sectional view on the line A-A of -F1g. 2, the generating coil being shown in'end v1ew.

her 510*.

The. operation of my device as a dynamo,

will be obvious from the above description.

As the rotor rotates with the shaft 9, the

. flux of the magnets M-M will be caused to r flow intermittently and in reverse directions through'the coil 13, thus generating a current in a primary winding in said coil and this primary winding may be controlled by a suitable interrupter mechanism mounted in the casing 12. The interrupting of the primary circuit produces a current in the secondary of the generating coil.

, The rotor turns in the direction indicated by the arrow in Fig. 2. A certain part of the .oil discharged in the chamber 11 will be taken up by the chambers 7 and 8 in succession and will be forced out of these chambers by centrifugal force into'the chamber 10 and thence into the pipe 10 causing the circulation of the "oil out through the pipe 10, to the parts tobe' lubricated and back again through the pipe 11 into the chamber '11. It will be noted that the generating coil is remote from the rotor and that the rotor is substantially housed by the supporting.

base, the pole piecesand .the cover plate 5, so that there is no chance for the oil to come in contact with the generating coil.

It will be obvious that'minor changes. in the details of construction and arrangement of parts, may be made without departing from the spirit of the invention, as set forth in the appended claims.

Having thus described my invention, I claim: Y

1. A combined dynamo and pump including in combination, a supporting structure,

' a stationarycoil, a rotor for directing flux through said stationary coil, said rotor being inclosed and separated from said coil,

inlet andoutlet pipes connected to said supporting structure, said rotor being constructed so as tooperate as an impeller for taking the oil from the inlet pipe and forcing the same out through the outlet pipe.

2. A combined dynamo andpump including in combination a supporting structure, pole pieces carried thereby, a generating winding mounted on the pole pieces, a rotor for directing a flux through said generating coil, said supporting structure having a cylindrical chamber in which said rotor fits and rotates, independent chambers open her, a generating coil carried by the pole' pieces, said rotor being completely housed in the supporting structure and separated from said generating coil, independent chambers opening into the cylindrical chamber for the rotor, a pipe connected with each chamber in the supporting structure, said rotor having chambers formed therein, the walls of which are curved so that oil taken from one of the chambers in the supporting structure by the rotor will be forced outwardly into the other chamber in said supporting structure.

In testimony whereof I hereunto afiix my signature.

RY RANDOLPH VAN DEVENTER. 

